Johnson Solids (Page 5)
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(J86)
Sphenocorona
Vertices:
10 ({4 + 2}[4] + {2 * 2}[5])
Faces:
14 ({4 * 2 + 2 * 2} equilateral triangles + 2 squares)
Edges:
22
Symmetry:
2-fold Pyramidal (C2v)
(values below based on edge length = 1)
Volume:
sqrt(2*(2+3*sqrt(6)
+2*sqrt(13+3*sqrt(6))))/4
≈1.5153516399764065597